Depth charges

Depth carges are used against submersibles. The mince case of depth charges consists of a ton-shaped metal cylinder. This case is equipped with an explosive charge between 10 and 140 kg and a trigger device. A depth charge can either be triggered at a certain water depth using pressure sensors or due to changes in the magnetic field strength by passing submersibles. Sometimes, also time-delayed depth charges, using timers or pyrotechnical or chemical delays were deployed especially during the Second World War.